Certified Rhythm Analysis Technician (CRAT) Practice Exam

The study of electrical activity of the heart is referred to as electrocardiology, which encompasses the assessment and analysis of the heart's electrical impulses using various techniques, including electrocardiograms (ECGs or EKGs). This field focuses on understanding the electrical signals that control the heart's rhythm and function, contributing significantly to diagnosing and treating various cardiac conditions.

While cardiology is the broader field that includes the study of the heart and its diseases, it does not specifically refer to the electrical aspect. An electrocardiologist is a specialist who works within this broader field but does not define the study itself. The term electrocardiogram is the diagnostic tool used to capture the heart's electrical activity rather than the field of study itself. Electrocardiology, therefore, is the precise term that directly relates to the study of the heart's electrical activity.